Shell Corena S4 R 68
ISO VG 68 anti-wear, extreme pressure compressor oil
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Key specs
| Spec | Value | Method |
|---|---|---|
| KV40 | 68 cSt | ASTM D445 |
| KV100 | 10.2 cSt | ASTM D445 |
| Viscosity index | 135 | ASTM D2270 |
| Pour point | -45 °C | ASTM D97 |
| Flash point | 248 °C | ASTM D92 |
| Density at 15 °C | 0.848 g/cm³ | typical |
Grade checks
- KV40 is inside ISO VG 68 (61.2–74.8 cSt).
- Computed viscosity index is 135, within 2 points of the listed 135.
Viscosity and temperature
ASTM D341 (Walther) fitted to the published KV40 and KV100. It is an interpolation between those two points, and it is not meaningful below the pour point. Move the control to read a temperature.
Classification
- Category: Compressor
- Attribute: Anti-Wear, Extreme Pressure
- Synthetic: Synthetic
- Copper: Unlisted
- Note: Synthetic rotary air compressor oil
Equivalents
| Oil | Score | Why |
|---|---|---|
| Chevron Cetus PAO 68 | 72 | same ISO 68, VI 141 vs 135, additive aw, synthetic, pour -47 vs -45, flash within 15 °C, buyable now |
| Chevron Cetus Hipersyn 68 | 67 | same ISO 68, VI 136 vs 135, additive aw, synthetic, flash within 15 °C, buyable now |
| Chevron Capella P 68 | 32 | same ISO 68, VI 109 vs 135, additive aw, pour -39 vs -45, flash within 15 °C |
| Chevron Capella WF 68 | 28 | same ISO 68, VI 12 vs 135, additive aw, synthetic |
| Chevron Cetus DE 68 | 20 | same ISO 68, VI 65 vs 135, synthetic, flash within 15 °C |
Scores use published typical data. This is not an exact equivalent, and it is not an OEM approval. Confirm the substitute with the machine builder.
Documents
Related: Shell, Corena S4 R, viscosity index calculator, ISO / SAE / AGMA chart.
Questions
Is Shell Corena S4 R 68 an ISO VG 68 oil?
Yes. The catalogue lists it as ISO VG 68, which is a kinematic viscosity of 68 cSt at 40 °C, plus or minus 10 percent (61.2 to 74.8 cSt). Confirm the current data sheet before you fill a machine.
What is a Shell Corena S4 R 68 equivalent?
Published oils in the same application and grade include Chevron Cetus PAO 68, Chevron Cetus Hipersyn 68. The match is from typical data-sheet values, not from an OEM approval. It is not an exact equivalent. Confirm the substitute with the machine builder.
Can Shell Corena S4 R 68 be mixed with another oil?
Mixing two oils that share a base family is sometimes done and sometimes a mistake. Do not mix this oil with a PAG. For any other mix, follow the maker's change-over guidance and the machine manual.
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